Residential building with built-in public rooms and underground parking in the village Sokilniki, Lviv region
Students Name: Muzyka Ivan
Qualification Level: magister
Speciality: Industrial and Civil Construction
Institute: Institute of Civil Engineering and Building Systems
Mode of Study: part
Academic Year: 2022-2023 н.р.
Language of Defence: ukrainian
Abstract: Muzyka I.Ya., Peleh A.B. (supervisor). "Residential building with built-in public premises and underground parking in the village of Sokilnyky, Lviv region. Master’s thesis. – National University “Lviv Polytechnic”, Lviv, 2022. The village of Sokilnyky is located at a distance of 1 km from the city of Lviv, through which important transport routes pass, also it is a political, administrative, economic, business and cultural center of Lviv region.There are numerous universities in Lviv, and the city is also gaining economic importance and creating jobs every year. Therefore, it was decided to build a 5-storey residential building with built-in public premices and underground parking, to increase the living space that the city so desperately needs. According to the master plan, the technical and economic indicators are: the area of the land plot – 0.477 ha, the building area – 216.6 m2 (45% of the plot), the area of the building – 2146.5 m2. The master plan shows the wind rose with the orientation of the building. The parking stalls were designed near the residential buildingaccordinf to the task envisaged by the project. The total dimensions of the building are 64.8 x 17.45 m in axes. It is a simple rectangular building in plan. The maximum height of the building is 22.35 m. number of storeys – 5 floors. The planning is carried out in accordance with all project requirements and in compliance with current regulations, there are main corridors, stairwells, bedrooms, toilets, kitchen niches, kitchens, dining rooms, loggias, etc. The construction of the external walls and facades is a ceramic hollow block 250 mm thick, with hard cotton wool insulation of 150 mm thick, the finishing is performed with a cement-perlite mortar followed by painting with frost-resistant and moisture-resistant facade paints. Also, the facade is decorated with small architectural forms, namely: windowsills, slopes and tiles. Structurally, the residential building is divided into 4 different sections, due to the different stages of construction, geological and economic conditions, and anti-seismic measures. The structural scheme of the building is a rigid reinforced concrete boltless frame with reinforced concrete columns, stiffening diaphragms and stiffening cores. The building is designed with three sections separated by anti-seismic seams. Vertical loads in the building are perceived by reinforced concrete columns and walls, horizontal loads - mainly by reinforced concrete walls, partly by columns. Monolithic ceilings serve as disc of rigidity of the building. The roof is designed as a doble-pitch one. The scheme of the load-bearing structures of the roof is rafters, seam covering. The wooden elements of the roof structures are designed to be made of coniferous wood with a moisture content of no more than 20%. In order to protect wooden structures from rotting and catching fire, it is needed to impregnate them with fire retardant and antiseptic solutions. Assembly nodes are provided on notches, nails and bolted connections. The constructive section of the thesis provides the calculation of four main structures of the designed building. In this case, these are reinforced concrete floors, monolithic stairs, calculated monolithic column and the foundation slab are designed. The MONOMACH 2016 R3 software package was used for machine calculation of building structures. This program simulates the reinforced concrete frame of the building, taking into account all load-bearing elements and loads according to regulations. Based on the data of engineering and geological surveys, the foundation is designed as a monolithic slab with thickness of 600 mm. The material of the foundations is heavy concrete of class C20/25, brand W6, reinforced with grids and spatial frames made of reinforcement of class A500C. Under the foundations, it is necessary to arrange a concrete foundation mat with thickness of at least 100 mm. According to the engineering and geological report, it is recommended to use IGE-2 soils, which are represented by dusty plastic sand with spots of iron oxides, yellow and yellow-gray. The main lower reinforcement has a diameter of 16 mm, A500C, with a spacing of a grid of 200x200 mm, the main upper reinforcement has a diameter of 14 mm, A500C, with a spacing of a grid of 200x200 mm. Additional reinforcement is also provided according to the calculated areas received from the model. The calculation of stair flight is done manually. Accepted concrete C20/25, the main reinforcement with a diameter of 12 mm., A500C, with a spacing of a grid of 150x150 mm. Also constructive additional reinforcement is provided. Reinforced concrete columns were calculated in the Monomakh software package. Accepted concrete C25/30. The main reinforcement with a diameter of 16 mm, A500C, clamps with a diameter of 8 mm, A240C, the spacing of the clamps in the upper and lower parts of the column is 100 mm, the spacing of the clamps in the middle of the column is 200 mm. Floor slabs are monolithic, the calculation of these structures was calculated in the Monomakh software package. The thickness of the floor slab is taken according to the spans and is 200 mm. Concrete C20/25. The main lower reinforcement with a diameter of 10 mm, A500C, with a grid step of 200x200 mm, the main upper reinforcement with a diameter of 8 mm, A500C, with a spacing of 200x200 mm. Additional reinforcement is also provided according to the calculated areas obtained from the model. The theme for the technological map was the technology of masonry of brick wall. Sheet №8 shows the general scheme of workplace organization, the scheme of movement of the main working mechanisms with their functions, as well as all technological processes. Technical and economic indicators were developed and calculated, the list of basic resources was indicated, and the technological standard set was selected. Control of construction works and its stages are given in tabular form (operational quality control system). The total duration of construction according to the developed construction schedule is 260 working days. The average number of people working on the construction site is 19 people. The cost of construction according to estimated is 98 million 157 thousand hryvnias. The cost of construction of 1 m2, respectively, is 45,728 hryvnias, $1,235.91 according to current NBU exchange rate. The price of each square meter includes: parking spaces, interior and exterior decoration and improvement of the territory. The topic of the thesis is the determination of the economic efficiency and feasibility of using different classes of concrete in the floor slabs of frame buildings. In general, C20/25 grade concrete is used for the floor slab, while higher grade concrete, namely C30/35, is used within the extrusion perimeter. During the concreting of the slabs, two simultaneous parallel processes are carried out – feeding of C20/25 concrete by a concrete pump and feeding of C30/35 concrete by buckets within the column pressing zone. Thus, while increasing the class of concrete within the compression zone in the floor slabs, the amount of reinforcement can be reduced. This, in turn, lowers the cost of construction in general, and it also leads to savings in labor resources, since the labor-intensiveness of concrete work during the execution of the floor slab is much less than the labor-intensiveness of reinforcing work.